| TT Cup Ukraine | 2020/11/10 12:00 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 1-3 |
| TT Cup Ukraine | 2020/10/24 15:05 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 1-3 |
| TT Cup (2020) | 2020/10/19 23:45 | Oleksandr Kostiuk v Stanislav Stelmashchuk | W | 0-3 |
| TT Cup Ukraine | 2020/07/23 20:45 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 1-3 |
| TT Cup Ukraine | 2020/07/14 21:45 | Oleksandr Kostiuk v Stanislav Stelmashchuk | W | 0-3 |
| TT Cup Ukraine | 2020/07/08 07:30 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 2-3 |
| TT Cup Ukraine | 2020/07/07 11:00 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 0-3 |
| TT Cup (2020) | 2020/07/04 11:35 | Oleksandr Kostiuk v Stanislav Stelmashchuk | L | 3-1 |
| TT Cup Ukraine | 2020/11/29 16:05 | Volodymyr Tuchkevych v Stanislav Stelmashchuk | L | 3-1 |
| TT Cup Ukraine | 2020/11/29 14:55 | Stanislav Stelmashchuk v Mykola Tovkach | L | 1-3 |
| TT Cup Ukraine | 2020/11/23 13:10 | Stanislav Stelmashchuk v Mykola Tovkach | W | 3-2 |
| TT Cup Ukraine | 2020/11/23 12:00 | Stanislav Stelmashchuk v Volodymyr Tuchkevych | L | 1-3 |
| TT Cup Ukraine | 2020/11/23 10:50 | Mykola Tovkach v Stanislav Stelmashchuk | W | 1-3 |
| TT Cup Ukraine | 2020/11/23 09:05 | Aleksey Glazkov v Stanislav Stelmashchuk | W | 0-3 |
| TT Cup Ukraine | 2020/11/23 07:20 | Samvel Melkumian v Stanislav Stelmashchuk | W | 1-3 |
| TT Cup Ukraine | 2020/11/21 19:40 | Mykola Tovkach v Stanislav Stelmashchuk | W | 1-3 |
| TT Cup Ukraine | 2020/11/29 15:30 | Samvel Melkumian v Oleksandr Kostiuk | L | 3-0 |
| TT Cup Ukraine | 2020/11/29 15:30 | Volodymyr Tuchkevych v Oleksandr Kostiuk | W | 0-3 |
| TT Cup (2020) | 2020/11/29 14:20 | Volodymyr Tuchkevych v Oleksandr Kostiuk | W | 0-3 |
| TT Cup Ukraine | 2020/11/27 03:15 | Andrey Tsikhotskiy v Oleksandr Kostiuk | W | 1-3 |
| TT Cup Ukraine | 2020/11/27 00:45 | Andrey Tsikhotskiy v Oleksandr Kostiuk | L | 3-1 |
| TT Cup Ukraine | 2020/11/27 00:15 | Oleksandr Kostiuk v Ihor Matsehora | W | 3-0 |
| TT Cup Ukraine | 2020/11/26 23:15 | Samvel Melkumian v Oleksandr Kostiuk | W | 1-3 |
| TT Cup Ukraine | 2020/11/26 22:15 | Oleksandr Kostiuk v Sergey Gilitukha | W | 3-2 |